Petunias are popular plants for gardeners in all areas. As an annual, they are easy to grow and give a patio, garden or even a living room a long-lasting color!
Petunias are beautiful, but not known for showing flowers – they are so common that they often take a back seat in garden centers and flower shops.
However, there is one exception – and that’s the night sky petunia.
You must consider this new variety if you want a brand new look for your flower garden. They have beautiful white flowers that will remind you of the distant cosmos.
If you’re new to growing petunias, check out our ultimate guide to growing night sky petunias on how to cultivate the latest trend of the season.
What are night sky petunias?
Often referred to as galaxy flowers, the night sky petunias were introduced in 2016, making them one of the newest types of petunias in season.
These trendy flowers have become known practically overnight. Their blossoms inspired by constellations steal the hearts of gardeners around the world.
You can grow these flowers in hanging baskets, containers, or directly in the ground. Closely related to the night sky petunias are the Burgundy petunias Pink Sky and Starry Sky, each of which has similar white spots.
Although they work best outdoors, you can grow them indoors in a container. The plants reach heights of 10 to 16 inches and spread 24 to 36 inches. They have a semi-trailing habit, which makes them perfect candidates for hanging baskets.
They also have a delicate scent that is known to attract pollinators. If you want to see lots of bees, butterflies and hummingbirds, Night Sky Petunias will definitely attract them.
Where to buy petunias from the night sky
If you want to start Night Sky Petunias from seeds, you can buy seeds from sellers on Etsy, Amazon and Growjoy. You can also buy plants from online and local nurseries and garden stores, although admittedly this strain is harder to get than petunias of other colors.
How to grow night sky petunias
As an annual, petunias only grow well for one growing season. However, once you bloom these beauties in early spring, they grow well and bloom until the first autumn frost.
Beginning blooms a little later than other petunias, usually in early summer, but well into autumn.
For best results, Plant them in a place that gets full, direct sunlight. In fact, these sun-worshiping plants need at least six hours of light every day. Less, and you may find that your plants don’t bloom properly.
You can start the seeds yourself, ideally until the end of February if you start the seeds indoors. In fact, for most cold climate growers, it is necessary to start seeds indoors because the growing season is simply not long enough for these flowers to gain a foothold.
Otherwise, you can simply start the plants from mature growth. Most growers will have these flowers ready for sale in May or June. This is the best time to plant these beautiful flowers in most areas.
You can find the patterns on each of your Petunia blossoms in the night sky change as the temperature changes.
Their flowers can change over the course of the growing season, with cooler temperatures leading to more white spots and warmer temperatures, and the plates taking on a deeper purple. Most “stars” usually appear in autumn.
Temperatures from 52 to 75 degrees are perfect. They don’t take long days to bloom, but they do take a lot of warmth.
Caring for night sky petunias
Night sky petunias are drought tolerant once they are established. However, well-drained soil is essential. These flowers don’t like to be soaked. If you want to grow in a container or hanging basket, make sure there are enough holes for drainage.
You should also allow the soil to feel dry before watering it again. In some cases, you may need to water planters every day, while in other cases, the trick is enough just a few times a week.
Night sky petunias, like all other petunias, require a lot of energy to bloom. Therefore, you need to plant them in rich soil with lots of organic matter. You should also fertilize your plants regularly – this will help the plant continue to produce flowers.
You can use a balanced 10-10-10 fertilizer every two weeks if you grow in a container. If you grow petunias in the garden, you can only fertilize once every three weeks.
It can be helpful to do a soil test before planting. You need moderate pHToo high a pH can lead to iron deficiency and yellowing of the leaves of your plant.
Night sky petunias are not like other petunias in that they don’t have to die very often. Although deadheading sounds violent, it simply refers to pulling out used flowers so the plant can produce new flowers.
If your plants get too long, keep in mind that you can always prune the stalks halfway through the season.
Repotting and distributing instructions
You can report and distribute your night sky petunias if you wish. You should keep the soil temperature stable 68 to 74 degreesuntil roots appear. You can fertilize as soon as you see roots, and make sure the soil is moderately moist.
If the roots are well developed, you can pinch them to encourage early branching. The cuttings are ready for transplantation about three weeks after sticking.
Other interesting flower lists and garden items:
Grow the night sky petunia for mystical summer color
When you’re ready to really mess things up in your garden this summer, it’s time to grow the night sky petunia. With deep purple petals and bright white spots, you’ll find that just like snowflakes, no two flowers are exactly the same.
For a truly out-of-the-world experience, consider growing this delicate petunia strain this season.